A mirror faces a cliff located some distance away. Mounted onthe cliff is a second mirror, directly opposite the first mirror adistance 1,772.35 away and facing toward it. A gun is fired veryclose to the first mirror. The temperature on the day is 26.88 oC.How many times does the muzzle flash of the gun travel the roundtrip distance between the mirrors before the echo of the thegunshot is heard?
